Gastritis does not show symptoms of diarrhea, while enteritis basically shows symptoms of diarrhea, but patients with gastritis often have enteritis at the same time, such as acute gastroenteritis, when symptoms of diarrhea, nausea and vomiting occur. In the case of chronic gastritis or chronic gastroenteritis, the symptoms of diarrhea will not appear, but mainly manifest as vague abdominal pain, bloating, early fullness, acid reflux, belching, change in the number of stools, change in stool properties, etc. Diarrhea is mostly caused by improper diet, and there may be bacterial infection or viral infection, causing disorder of intestinal flora, so diarrhea symptoms will appear. For the treatment of diarrhea preferred probiotics, commonly used probiotics are clostridium typhimurium tablets or gold bifidus, etc., the specific medication can consult the drug instructions or consult a specialist.